Hand is played at HU Zoom and I do not have many hands on villain though he has been aggressive thus far. I had played a similar hand previously where I checked flop after three betting and called twice before folding to his river barrel. The fact this hand played out the same way makes me lean more towards calling.

I think the flop hits his range pretty hard and we have two overs along with the gutshot so I think we have enough equity to continue but don't really want to bloat the pot by cbetting.

Good card for us though it continues to improve his range as well. I would imagine most villains would be quite polarised in this spot so c/r does not achieve anything.

Villain insta shoves river for around a pot size bet and Im conflicted even after playing around with different ranges. On one hand we have top pair in a 3bet pot after taking a passive line against a villain who has previously been aggressive in this spot.
However I have no evidence to suggest villain is betting recklessly on all runouts and he can have a lot of 2p+ hands that would still shove the river plus I assume he would check back at least one street with some pair+draw hands as well. Therefore the only pure bluffing combos are Jx and Kx hands that have not made a pair which is not really enough combos.
I think folding is fine but was worried it is fairly exploitable after checking flop to then fold on one of the few turns that improve us.